In 1987, Cooley Distillery, the only independent Irish owned distillery in Ireland acquired the rights to the A. A. Millar brands.
From the website:
The Millars Special Reserve Irish Whiskey brand originates from a company in Dublin called Adam Millar & Company.
The brand was first established in 1843 as a premium Irish Whiskey and was successfully marketed until the 1970's. Millars Special Reserve was known throughout Ireland as a classic Dublin sipping whiskey. The traditional method of drinking such a whiskey was to sip it neat and occasionally drink a bottle of Guinness Stout as well.